Smoothest ceiling panels available in shapes, tailor-made sizes, and colors with TOTAL ACOUSTICS and SUSTAIN performance. Available to ship in 3 weeks.

Key Features & Performance

  • DESIGNFLEX options include shapes, tailor-made sizes, and colors available to ship in 3 weeks.
  • Mix and match – Shapes also available with LYRA, ULTIMA, OPTIMA, METALWORKS, and WOODWORKS panels.
  • Get total noise control and floor plan versatility with TOTAL ACOUSTICS ceiling panel options: NRC + CAC = TOTAL ACOUSTICS Performance.
  • CALLA panels are part of the SUSTAIN portfolio and meet the most stringent industry sustainability compliance standards today.
  • CLEANASSURE family of products –includes disinfectable panels, suspension systems, and trim
  • Light reflectance – 0.85 (white only)
  • Mold- and mildew-resistant surface
  • Shaped lights and diffusers are available from our DESIGNFLEX partners. Our TECHZONE lighting and MEP partners also provide products that are compatible with the DESIGNFLEX system; other standard modular and pendant fixtures can also be used with this ceiling system
  • USDA-Certified Biobased Product – 91%
  • Washable, Impact-resistant, Scratch-resistant, Soil-resistant
  • Product can be recycled through the Armstrong Ceilings Recycling Program.
  • 10-Year Limited System Warranty against visible sag, mold, and mildew
Mineral Fiber
Sound Absorption (NRC)

A measure for rating the overall sound absorption of a material when used in an enclosed architectural space where sound is reflected at many angles of incidence. A ceiling system with an NRC < 0.50 is low performance, an NRC > 0.70 is high performance.

Sound Blocking (CAC)

A measure for rating the performance of a ceiling system as a barrier to airborne sound transmission through a common plenum between adjacent closed spaces. A ceiling system with a CAC < 25 is considered low performance, whereas one with CAC of 35 or higher is high performance.

Up to 35
Fire Performance
Class A
Light Reflectance

A high light reflective ceiling – LR 0.83 or greater, per ASTM E1477-98 as referred to in ASTM E1264-98 – makes lighting systems, especially indirect lighting, more effective while further reducing energy costs and consumption. LR values apply to White panels only.

Mold/Mildew Resistance

Ceiling panels with BIOBLOCK performance resist the growth of mold and mildew on the panel surface.
Ceiling panels with BIOBLOCK Plus performance resist the growth of odor and stain-producing bacteria as well as mold and mildew on the ceiling panel surface.

Sag/Humidity Resistance

Ceiling panels maintain humidity and sag resistance.

Soil Resistance

Excellent resistance to dirt and/or grease for lasting value and performance.

Impact Resistance

Surface impact based on the Striking Ball Impact Test, modified ASTM D1037 procedure.

Scratch Resistance

Excellent resistance to surface scratching, scuffing or chipping as per Hess Rake Test.


Offers superior wash resistance without compromising panel finish integrity, using a washability tester as per ATSM D4828.


May be fogged following CDC recommendations using EPA-approved disinfectant ​cleaners per Armstrong Cleaning & Disinfecting Guidelines​

USDA certified biobased content

This product is part of the USDA BioPreferred Program and it's biobased content has been independently laboratory tested and third-party certified.

The ideal combination of sound absorption & sound blocking.
Complimentary ceiling design & pre-construction service.
Sustainability Profile
Recycled Content
Sustainable Product Search Tool
Recyclable via the Armstrong Ceilings Recycling Program
LEED  •  WELL  •  Living Building Challenge
Recyclable/Extended Producer Responsibility
Recycled Content
Energy Management
Sourcing of Raw Materials
Construction Waste
Material Ingredient Reporting
Regional Materials
Location Dependent
Low emitting/materials
Design for Flexibility
Lighting Quality
Biobased Materials
High Performance Sustainable Ceiling Systems
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Living Building Challenge Compliant
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